Is it permissible for me to give a department official a gift for helping me with my visas

Q: I live abroad. I am the only son of my parents and there is no one to look after them nicely in Pakistan. I applied for my parents residence visa but for no reason they rejected my parents visa. Our company legal manager contacted one person in the department, he helped us getting my parents visa. After I got my visa, he is asking for his gift for the work done. I didn’t promise any gift in advance. He says he helped so he deserves a gift i.e. an expensive mobile. I cannot say no to him ethically because he helped me a lot to get the visa. Is it halaal to give him mobile? I am very worried.

A: If he assisted you in expediting the process of acquiring the visa without adopting any illegal measures (in the visa department etc.), you may give him a gift for assisting you.